#511D23#511D23

#511D23 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.078 H 15.8°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#511D23
RGB	rgb(81, 29, 35)
HSL	hsl(353, 47%, 22%)
HSV	hsv(353, 64%, 32%)
CMYK	cmyk(0%, 64.2%, 56.8%, 68.2%)
CIE-LAB	lab(19.01, 24.95, 8.47)
CIE-LCH	lch(19.01, 26.35, 18.74°)
OKLab	oklab(31.15% 0.0751 0.0213)
OKLCH	oklch(31.15% 0.078 15.8)
XYZ	xyz(4.1364, 2.7499, 1.9027)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511D23 #1D514B

analogous

#511D3D #511D23 #51311D

triadic

#511D23 #23511D #1D2351

tetradic

#511D23 #3D511D #1D514B #311D51

square

#511D23 #3D511D #1D514B #311D51

split-complementary

#511D23 #1D5131 #1D3D51

monochromatic

#17080A #240D10 #511D23 #7E2D36 #AB3D4A

Accessibility & contrast

On white

13.55

#511D23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#511D23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511D23

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511D23	#FFFFFF	#000000	##FFFFFF
##511D23	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292723

Deuteranopia (green-blind)

#363222

Tritanopia (blue-blind)

#59151F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #511d23;
/* rgb */ color: rgb(81, 29, 35);
/* oklch */ color: oklch(31.2% 0.078 15.8);

Tailwind

colors: {
  custom: {
    50: '#855b5d',
    500: '#511d23',
    950: '#000000',
  },
}

SCSS

$custom: #511d23;
$custom-light: #855b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#511d23",
  "rgb": {
    "r": 81,
    "g": 29,
    "b": 35
  },
  "hsl": {
    "h": 353.077,
    "s": 47.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31151,
    "c": 0.07805,
    "h": 15.8
  },
  "luminance": 0.02749
}

Semantic roles & 50–950 ramp

primary

#511D23

secondary

#44867F

accent

#D7C751

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0B0404

muted

#7C7979

Preview Lab

Preview with #511D23

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →